POLY(OXY-1,2-ETHANEDIYL), .ALPHA.-METHYL-.OMEGA.-HYDROXY-, 6-ETHER WITH N-(6-(((1-((2-(3,6-BIS(2,3-DIHYDRO-1H-INDOL-1-YL)XANTHYLIUM-9-YL)PHENYL)SULFONYL)-4-PIPERIDINYL)CARBONYL)AMINO)-1-OXOHEXYL)GLYCYLGLYCYL-L-ARGINYL-N6-(6-(2-(5-(1-ETHYL-1,3-DIHYDRO-3,3